Cem-fix - Wallfast · Repairing Separating walls using Cem-Fix (1) Drill clearance holes (13mm-16mm...

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Repairing Separating walls using Cem-Fix

(1) Drill clearance holes (13mm-16mm diameter depending upon material and length

of tie to be used) to specified depth and at required vertical spacing.

(2) Blow out holes and thoroughly flush with water.

(3) With the aid of a grout gun, pump Cemspand cementitious grout to outlet of nozzle.

Insert nozzle to full depth of drilled hole and pump grout to fill hole. Maintain pressure

on gun while retrieving nozzle to ensure that all voids are filled with grout.

(4) Wind correct length Cem-fix into hole using Fast-fix support tool. Make good all

holes at surface with colour matching dyed mortar.

Unless specified otherwise the following criteria are to be used.

a) Cem-fix to be installed at the same density as remedial wall ties 2.47 per square

metre using horizontal centres of 900mm and vertical centres of 450mm with additional

Cem-fix installed either side of openings at 300mm vertical centres.

Installation Notes:

CF-01

Rubble Fill Wall Solid Wall

©1999 Tri-Bar Systems. wallfast ltd. Sales Tel 023 9229 8443 Issue 1

Repairing Cracks in Solid Walls using Cem-Fix

(1) After locating and marking positions of holes on the outer side of wall. Drill clearance

holes (13mm-16mm diameter depending upon material and length of tie to be used) through

outer wall to specified depth and at required vertical spacing.








a) Cem-fix to extend at least 100mm past crack..

b) Normal vertical spacing of is 450mm(6 brick courses).

c) Cem-fix to be installed in the centre of the wall.

Installation Notes:

Cem-fix

CF-02


Repairing Cracks in Cavity Walls using Cem-Fix


holes (13mm-16mm diameter depending upon material and length of tie to be used)

through outer wall then on into inner wall to specified depth and at required vertical

spacing.










c) Cem-fix to be installed in the centre of the wall.

d) Make sure Cem-fix is fully inbeded in inner hole and not bridging cavity with grout.

E) install remedial walls either side of Cem-fix at vertical 225mm staggered centres.

Installation Notes:

Cem-fix

CF-03


Repairing Cracks in Solid walls using

Cem-Fix Cross Stitching

(1) Drill clearance holes (13mm-16mm diameter depending upon material and length of tie to

be used) to specified depth and at required angle vertical spacing.





(4) Wind correct length Cem-fix into hole using Fast-fix support tool. Make good all holes at

surface with colour matching dyed mortar.

Unless specified otherwise the following criteria are to be used. Cem-fix

can used to restabilise horizontal cracks as well as vertical cracks.

a) Cem-fix to be installed at angles, the angle and distance from crack of the start

position of the clearance hole will depend on the thickness of the wall being repaired.

b) Cem-fix start position, angle and depth, should make sure that the middle of cem-fix

meets the crack at the middle of the wall being repaired.

C) Cem-fix to be installed from alternates sides of the crack and 225mm centres.

Installation Notes:

CF-04

X X

Section xx


Repairing Failed Soldier Course Lintels in Cavity Walls

(1) Cut out slots into horizontal mortar joints to specified depth and at required vertical

spacings. Blow out slots and thoroughly flush with water.

(2) With the aid of a grout gun insert a 10mm bead of Cemspand cementitious grout into the

back of the top slot only. Push the Tri-bar rod into the grout until a good coverage is achieved.

Insert a second 10mm bead of Cemspand cementitious grout over the exposed rod. Push second

Tri-bar rod into the grout until a good coverage is achieved. Insert a final 10mm bead of

Cemspand cementitious grout over the exposed rod and iron into slot using a finger trowel.

(3)

When Cemspand has set repoint joint to match

existing mortar joint.

Unless specified otherwise the following criteria are to be used

a) The depth of slot to be 40 to 55mm

b) Tri-bars are to extend a minimum of 500 mm each side of opening.

C)Top and bottom Tri-bar beams to be vertically spaced as far a part as possible to maximum

distance of 900mm.

D) Cem-fix spacings no more then 400mm.

After locating and marking positions of holes on the under side of Soldier course.

Drill clearance holes (13mm-14mm diameter depending upon material) at required angle

and depth. Angle of drill should just miss the back of lower Tri-bar beam and continue

up at least 50mm into the above brick course.




on gun while retrieving nozzle to ensure that all voids are filled with grout. Wind correct

length Cem-fix into hole using Fast-fix support tool. Make good all holes at surface with

colour matching dyed mortar.

(6) Install lower Tri-bar beams as per (2).

Installation Notes:

CF-05


Repairing Near Corner Cracks in Solid Walls

using Cem-Fix


holes (13mm-16mm diameter depending upon material and length of tie to be used) to

specified depth and at required vertical spacing.










C) Cem-fix to be installed in the centre of the wall.

Installation Notes:

Cem-fix

CF-06


(1) Drill clearance holes (13mm-16mm diameter depending upon material and length

of tie to be used) to specified depth and at required vertical spacing.








A) Cem-fix to extend at least 100mm past crack..

b) Normal vertical spacing of Cem-fix is 450mm(6 brick courses).

c) Cem-fix to be installed 50mm from corner.

d) If cracking occurs on both elevation of the same corner then stagger Cem-fix.

Installation Notes:

CF-07Repairing Near Corner Cracks in Cavity Walls

using Cem-Fix


Repairing Failed Arch Lintels in Solid Walls








(3)







distance of 900mm.


After locating and marking positions of holes on the under side of arch. Drill

clearance holes (13mm-14mm diameter depending upon material) at required angle










Installation Notes:

CF-08


Repairing Failed Arch Lintels in Cavity Walls








(3)







distance of 900mm.


After locating and marking positions of holes on the under side of arch. Drill

clearance holes (13mm-14mm diameter depending upon material) at required angle










Installation Notes:

CF-09


Repairing Solid Parapet Walls

(1)


a) Cem-fix to be installed at a horizontal spacing 600 mm.

b) Cem-fix to extend at least 225 mm into sound parts of the the main .

C) Cem-fix to be installed in the middle third of the parapet wall.

D) Cem-fix to be installed in or abutting or cross walls where possible.

After locating and marking positions of holes on top of wall. Drill a clearance holes

(13mm-16mm diameter depending upon material and the length of tie to be used) to

required depth.





(4) Wind correct length Cem-fix into hole using Fast-fix support tool. Make good all holes

at surface with colour matching dyed mortar.

Installation Notes:

CF-10

Elevation

Plan

End Section


Repairing Cavity Parapet Walls

(1)


a) Cem-fix to be installed in both leaves at 600mm stagged centres .

b) Cem-fix to extend at least 225 mm into sound parts of parapet wall.

c) Cem-fix to be installed in the middle third of the parapet wall.

D) Install new ties at 900mm vertical centres and 450 mm horizontal centres into parapet wall.

After locating and marking positions of holes on top of wall. Drill a clearance holes

(13mm-16mm diameter depending upon material and the length of tie to be used) to

required depth.







Installation Notes:

CF-11


Repairing cracks in wall junctionsBay Windows main

CF-12












b) Normal vertical spacing of Cem-fix is 300mm(4 brick courses).

Installation Notes:


Repairing Cracks in Solid Bay Windows in

main wall junctions and Bay Corners

CF-13












b) Normal vertical spacing of Cem-fixs is 300mm(4 brick courses).

c) The bay may need Tri-Bars and Bow-ties to properly stabilise see TB-14 to TB-16 and

BF-03.

Installation Notes:


Repairing Brick Arches with Angled Cem-fix

CF-14

(1) Mark positions of lines and holes on the under side of arch to required spacing.


be used) to specified depth. Alternating holes left to right along marked line.







60 deg angled


A) Normal spacing of lines is 450mm.

b) Normal spacing of Cem-fix is 450mm(6 brick courses).

Installation Notes:

XSection xx

X


Repairing Loose Bricks & Re-pointing on

Under Side of Brick ArchesCF-15

(1) Mark positions of loose bricks which require Cem-fixing.


be used) in centre of brick to specified depth.


(4) With the aid of a grout gun fitted with correct size of nozzle, pump Cemspand

cementitious grout to outlet of nozzle. Insert nozzle to full depth of drilled hole and pump

grout to fill hole. Maintain pressure on gun while retrieving nozzle to ensure that all voids

are filled with grout.



(6) After 24 hours rake out and repoint Using

Cemspand and grout gun

I

around bricks that have been Cem-fixed.


a) Cem-fix depth to penetrate 70 mm into sound brickwork .

nstallation Notes:

XSection xx

X


Replacing Loose Bricks & Re-pointing on

Under Side of Brick ArchesCF-16

(1) Mark positions of loose bricks and bricks which require Cem-fixing.

(2) Cem-fix into sound bricks around the area of brickwork that needs replacing using

repair strategy CF-15.

(3) After 24 hours remove bricks that need replacing.

(4) Drill 5 mm to 6 mm pilot hole 75mm deep into middle of new brick. Drive 8mm Tri-fix

tie in to each new brick.

(5) Mark position of clearance holes using protruding tie end, then drill a 10mm hole 70 mm

deep then blow out dust and fill with Tri-set resin.

(6) Trowel some Cemspand onto the back of new brick then insert tie and brick into position

and secure with wedges until resin set (Approx 30 minutes)

(7)

I

After all new bricks have set rake out and repoint around bricks that have been

Cem-fixed. Using Cemspand and grout gun


a) Cem-fix depth to penetrate 70 mm into sound brickwork .

nstallation Notes:

XSection xx

X

Cem-fix

Tri-fix-tie


Repairing Separating Archesl using Cem-Fix

(1) Mark positions and drill clearance holes (13mm-16mm diameter depending upon

material and lengthof tie to be used) to specified depth and at required vertical spacing.








a) Cem-fix to be installed at horizontal and vertical centres of 450mm.

B) Cem-fix to extend 200mm past crack.

Installation Notes:

CF-17

Section xx

X

X


Cemspand Cementitous Grout

Compression strength with different amounts of expanding agents per 5 Kgs

Day 1 Days 7 Days 28 Standard 3 GMS of Expanding Agent Compression strength 9.9 N/mm2 44.0 N/mm2 52.0 N/mm2 Expansion 1% 1% 1% Cube Size 100mm 100mm 100mm Cube mass 1940g 1876g 1899g Density 1940 kg/m3 1880 kg/m3 1900 kg/m3 Failure Load 99.1 kN 442 kN 522 kN * Supplied on request * 12 GMS of Expanding Agent Compression strength 11.0 N/mm2 27.5 N/mm2 30.5 N/mm2 Expansion 4% 4% 4% Cube Size 100mm 100mm 100mm Cube mass 1787g 1775g 1736g Density 1790 kg/m3 1780 kg/m3 1740 kg/m3 Failure Load 110 kN 274 kN 304 kN * 25 GMS of Expanding Agent Compression strength 7.7 N/mm2 15.0 N/mm2 18.5 N/mm2 Expansion 16% 16% 16% Cube Size 100mm 100mm 100mm Cube mass 1558g 1580g 1560g Density 1560 kg/m3 1580 kg/m3 1560 kg/m3 Failure Load 76.7 kN 152 kN 165 kN * 50 GMS of Expanding Agent Compression strength 7.2 N/mm2 12.0 N/mm2 13.5 N/mm2 Expansion 20% 20% 20% Cube Size 100mm 100mm 100mm Cube mass 1579g 1520g 1580g Density 1580 kg/m3 1520 kg/m3 1580kg/m3 Failure Load 71.9 kN 119 kN 133 kN * 100 GMS of Expanding Agent Compression strength 0.7 N/mm2 3.7 N/mm2 4.9 N/mm2 Expansion 40% 40% 40% Cube Size 100mm 100mm 100mm Cube mass 1248g 1258g 1283g Density 1250 kg/m3 1260 kg/m3 1280kg/m3 Failure Load 7.4 kN 37.0 kN 48.7 kN

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Manufacturers of Wall Ties, Structural Repair Systems & fixings

Unit 3.5 Central Point, Kirpal Rd Portsmouth, PO3 6FH TEL 023 92298443 Fax 023 9229 8445 Email mail@ wallfast.co.uk Web wallfast.co.uk

Triset Resin 1

TRISET PRODUCT DATA SHEET DESCRIPTION Triset is a rapid curing 'one shot' two part chemical anchoring cartridge system based on a polyester resin. Applied in one single action to produce a cost effective, tough, chemical resistant fixing. Triset is ideal for close-to edge applications (unlike expansion anchors) as no stress is placed on the surrounding substrate. Versatile in use, Triset is suitable for fixing wall ties, starter bars, studs, bolts or large screws in a wide range of substrates including brickwork, concrete, masonry, stone and PF A blocks. Hollow base materials can be securely fastened into by using Triset in conjunction with a sleeve or sieve. PREPARATION 1. Drill hole to the correct diameter and depth (see chart for guide), ideally using a rotary

percussion machine. For optimum results the hole must be coarse sided. If the holes are produced by diamond drilling the surfaces should be thoroughly roughened.

2. Remove all dust and debris from the hole using a hand air pump or a stiff rotary brush. 3. All bars should be clean and free from oil or grease and all flaking rust should be removed.

Threaded rod or struts should be chisel-ended to prevent them being unscrewed from the cured resin.

APPLICATION 1. Attach the mixing nozzle tot he cartridge (screw down hand tight). 2. Mount the cartridge into the dispensing gun. 3. Squeeze out material through the nozzle until an even colour is achieved (approximately 5-6

inches of extruded material should be adequate). 4. Apply to the hole working from the base out. Once the required fill is obtained release the

pressure and wipe away excess material. Place the bolt or screw into the hole with a rotary action. Wipe away excess material. Attach fixture once resin has cured.

NB Once material has started to extrude through the nozzle over pressuring the system will not



Triset Resin 2

increase flow rate. And can cause 1eakage from the rear of the cartridge. TECHNICAL DATA MIXING RATIO 10: 1 by volume

Supplied in 380ml cartridges TEMPERATURE GEL TIME CURE TIME (C) (F) (Minutes) (Minutes)

5 41 12 240

10 50 9 180 15 59 6 150 20 68 5 120 25 77 3 60 ULTIMATE PHYSICAL PROPERTIES Tensile Strength (ASTM 638) -> 1ON/mm sq. Compressive Strength (ASTM 695) -> 78N/mm sq. Flexural Strength (ASTM 790 - 21N/mm sq. Elastic Modulus - 4570N/mm sq. Mixed Density - 1.65g/cm sq. The above physical properties were arrived at independently by Birmingham City Laboratories. ANCHOR SIZE HOLE DIAMETER HOLE DEPTH TENSION FIXINGS PER UNIT

(mm) (mm) (mm) (kN) (Holes Filled 2 Quarters Full) (Ultimate pull out ) 380ml

8 10 80 23.7 90

10 12 90 25.7 56 12 14 110 43.3 34 16 18 125 53.7 18 20 22 150 58.3 10



Triset Resin 3

Tension figures quoted are tested in accordance with BS5080 part 1 in 63 N/mm sq concrete blocks (12 x 12 x 12 inches). In all cases for 16mm and 20mm anchors failure of the concrete block was observed before the anchor was dislodged. The ultimate pull out strength is varied by: 1. The strength of both the substrate and bar/stud 2. The length of the resin bond to bar 3. Hole preparation 4. Anchor separation Safety factors of between 2:1 and 4:1 should be considered depending on the strength and nature of the substrate. Due to the inconsistent nature of hollow blocks and bricks tension figures may vary. Site testing should be carried out where necessary to establish particular suitability. In order to achieve maximum performance the distance between the centres of the anchors should be a minimum of2.5 x the embedment depth, and 1.25 x the embedment depth for the minimum distance from edges. STORAGE Store in a dry area between 5 C and 25 C. Do not expose to direct sunlight. Storage at higher temperatures will reduce the shelf life. HEALTH AND SAFETY DATA Triset contains styrene and is flammable. Do not smoke and do not allow naked flames to come into contact with this material. Avoid breathing vapour and wear suitable protective clothing such as gloves and overalls. On contact with skin wash off immediately with plenty of soap and water. IMPORTANT The information and data given is based on our own experience, research and testing and is believed to be reliable and accurate. However, as Wallfast Ltd. cannot know the varied uses to which its products may be applied, or the methods of application used, no warranty as to the fitness or suitability of its products is given or implied. It is the users responsibility to determine suitability of use. For further information, please contact our Technical Department.

Cem-fix - Wallfast · Repairing Separating walls using Cem-Fix (1) Drill clearance holes (13mm-16mm...

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